Answer:
We conclude that there is not enough evidence to support the claim compute technique performs differently than the traditional method.
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = 101 hours
Sample mean, =100 hours
Sample size, n = 140
Alpha, α = 0.01
Population standard deviation, σ = 6 hours
First, we design the null and the alternate hypothesis
We use Two-tailed z test to perform this hypothesis.
Formula:
Putting all the values, we have
Now,
Since,
The calculated z statistic lies in the acceptance region, we fail to reject the null hypothesis and accept it.
We conclude that there is not enough evidence to support the claim that compute technique performs differently than the traditional method.
Answer:
$2.2
Step-by-step explanation:
To calculate 4% of $55
You simply times 4% with $55.
Hope it helps! :)
Answer:
50 ur welcome
Step-by-step explanation:
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9514 1404 393
Answer:
b = 71 m
A = 83°
C = 29°
Step-by-step explanation:
Many calculators can solve triangles. Apps are available for phone and tablet, or on the internet, like the one used here. In general, it takes less time to use one of these than to type your question into Brainly.
Given two sides and the angle between them, the Law of Cosines is the appropriate relation to use for finding the third side.
b = √(a² +c² -2ac·cos(B))
b = √(76² +37² -2·76·37·cos(67.75°)) ≈ √5015.48
b ≈ 70.82005 ≈ 71 . . . meters
__
One a side and its opposite angle are known, the remaining angles are found using the Law of Sines.
sin(A)/a = sin(B)/b
A = arcsin(a·sin(B)/b) = arcsin(76·sin(67.75°)/70.82005) ≈ 83.33°
A ≈ 83°
C = arcsin(37·sin(67.75°)/70.82005) ≈ 28.92°
C ≈ 29°
Or, you can find the remaining angle from 180° -68° -83° = 29°.